CDatabase::GetBookmarkPersistence

DWORD GetBookmarkPersistence( ) const;

Return Value

A bitmask that identifies the operations through which bookmarks persist on a recordset object. For details, see Remarks.

Remarks

Call this member function to determine the persistence of bookmarks on a recordset object after certain operations. For example, if you call CRecordset::GetBookmark and then call CRecordset::Requery, the bookmark obtained from GetBookmark may no longer be valid. You should call GetBookmarkPersistence before calling CRecordset::SetBookmark.

The following table lists the bitmask values that can be combined for the return value of GetBookmarkPersistence.

Bitmask value	Bookmark persistence
SQL_BP_CLOSE	Bookmarks are valid after a Requery operation.
SQL_BP_DELETE	The bookmark for a row is valid after a Delete operation on that row.
SQL_BP_DROP	Bookmarks are valid after a Close operation.
SQL_BP_SCROLL	Bookmarks are valid after any Move operation. This simply identifies if bookmarks are supported on the recordset, as returned by CRecordset::CanBookmark.
SQL_BP_TRANSACTION	Bookmarks are valid after a transaction is committed or rolled back.
SQL_BP_UPDATE	The bookmark for a row is valid after an Update operation on that row.
SQL_BP_OTHER_HSTMT	Bookmarks associated with one recordset object are valid on a second recordset.

For more information about this return value, see the ODBC API function SQLGetInfo in the ODBC SDK Programmer's Reference. For more information about bookmarks, see the article Recordset: Bookmarks and Absolute Positions (ODBC) in Visual C++ Programmer's Guide.

CDatabase Overview | Class Members | Hierarchy Chart